search for: lastframerecon

...ing on an implementation of the theora codec on hardware. I'm currently responsible for getting the function ReconRefFrame in dct_decode.c working, and after i understood the code and finished it in VHDL i found out (after 3 painfull debugging days) that i don't understand at all what is in LastFrameRecon, ThisFrameRecon and GoldenFrame (which types are YUV_BUFFER_ENTRY). Generally what i want to know is: What is inside YUV_BUFFER_ENTRY? More specifically, keep reading... I know it is a buffer for the pixels, but i just recently found out that there are more things then just the pixels i need. Thi...

...Read the YUV data into my own buffer To force the saved keyframe data back into theora: 1) call theora_decode_YUVout in order to get a YUV structure with its data members pointing somewhere usesful 2) copy the data I saved in (3) above back into the YUV structure (thereby writing it into the LastFrameRecon bit of the codec And finally, to decode the delta frame: 1) Put the packet I saved into theora using theora_decode_packetin 2) Grab the decoded packet using theora_decode_YUVout 3) convert the data to rgb and display. Like I said, it works fine except for the block artifacts. Any ide...

quite some speed improvement indeed. attached the updated patch to apply to svn/trunk. j -------------- next part -------------- A non-text attachment was scrubbed... Name: theora-mmx.patch.gz Type: application/x-gzip Size: 8648 bytes Desc: not available Url : http://lists.xiph.org/pipermail/theora-dev/attachments/20040824/5a5f2731/theora-mmx.patch-0001.bin